[s-cars] 94 S4 cut-out/low boost FIXED?

[R. Mair]

I've been on the quattro mailing list for years, but since owning a 94 S4
for a week, i thought it best to get on a more specific list such as this
one. My first questions/problem regarding lack of boost and cutting out has
been answered in detail by several of you. I tinkered around last night,
using a smoke machine to check for any vacuum leaks or cracks in hoses.
None. I swapped out the TAP ECM for the stock one, no difference. I swapped
out the K&N filter for a new paper one, no difference. Hmmmm... Yup, dern
cold here, perhaps the air is too dense and therefore tripping an overboost
situation? Dunno. I went home and ate dinner kinda bummed about the whole
thing. Later that night, Andreas Schneider emailed me with a problem he had.
He said the hose for the moisture trap on the firewall might have popped
off. So, at 10pm and around 2 degrees above zero, i went out in the snow to
check. Sure enough, the hose had popped off. I replaced it, but didn't drive
it yet, I'll do that this morning on the way to work. Thanks Andreas! Also
thanks to Robert Meyers for some great insight into these cars, as well as
Maguire. If any of you ever need audi specific info, give me a holler. I
have current version of Alldata and some of the Bentley books. Thanks again!

Rolf